| Acronym | Definition |
|---|
| CMO | Chief Marketing Officer (corporate title) |
| CMO | Chi-Mei Optoelectronics (TFT/LCD monitor technology) |
| CMO | Chief Medical Officer |
| CMO | Collateralized Mortgage Obligation |
| CMO | Civil-Military Operations |
| CMO | Care Management Organization |
| CMO | Cardiomyopathy |
| CMO | Check Me Out |
| CMO | Current Market Outlook |
| CMO | Common Market Organization (European Union) |
| CMO | Contract Manufacturing Organisation |
| CMO | Contract Management Office |
| CMO | Caribbean Meteorological Organization |
| CMO | Certificate Management Office |
| CMO | Count Me Out |
| CMO | Configuration Management Office(r) |
| CMO | chief military observer (US DoD) |
| CMO | Comfort Measures Only (similar to hospice care) |
| CMO | Crisis Management Operations |
| CMO | Competitive Mounted Orienteering (equestrian sport) |
| CMO | Central MASINT Office (now Central MASINT Organization) |
| CMO | Central MASINT Organization (formerly Central MASINT Office) |
| CMO | Central Moneymarkets Office (UK banking) |
| CMO | City Managers Office |
| CMO | Corticosterone Methyloxidase |
| CMO | Civil-Military Overview (NATO) |
| CMO | Chief Maintenance Officer |
| CMO | Catholic Media Office (UK) |
| CMO | Civil-Military Officer |
| CMO | Current Mode of Operation |
| CMO | Canonical Molecular Orbital |
| CMO | Chief Monitoring Officer |
| CMO | Cincinnati Metropolitan Orchestra (Cincinnati, OH) |
| CMO | Crisis Management Organization |
| CMO | Contract Manufacturing Operation |
| CMO | Convoy Movement Order |
| CMO | Calculated Mean Organism |
| CMO | Chinese Mathematics Olympiad |
| CMO | Carpathian Mountain Outreach (Ukraine) |
| CMO | Configuration Management Organization |
| CMO | Commodore's Messenger Organisation |
| CMO | Centro Médico Odescalchi (Italian) |
| CMO | Coverage Mission Order |
| CMO | Centrum Mot Olikfientlighet (Sweden) |
| CMO | Court of Military Order (Congo) |
| CMO | Cash Me Out (poker) |
| CMO | Corporate Manufacturing Objects |
| CMO | Chicago, St. Paul, Minneapolis, and Omaha Railroad |
| CMO | Communications Management Organization |
| CMO | Collection Management Office/Organization |
| CMO | Current Method of Operation |
| CMO | collections management office(r) (US DoD) |
| CMO | Community Manager's Office |
| CMO | Controlled Materials Officer |
| CMO | Centralized Mortgage Obligation |
| CMO | Clandestine Mission Objective |
| CMO | Centro Médico Oftálmico (Spanish: Ophthalmic Medical Center) |